Zobrazeno 1 - 10
of 86
pro vyhledávání: '"Von Harling, Benedict"'
Electroweak Baryogenesis (EWBG) paired with the Composite Higgs (CH) scenario provides a well-motivated and testable framework for addressing the questions of the origin of the matter-antimatter asymmetry and the naturalness of the electroweak scale.
Externí odkaz:
http://arxiv.org/abs/2307.14426
We present an update on the status of electroweak baryogenesis in minimal composite Higgs models. The particularity of this framework is that the electroweak phase transition can proceed simultaneously with the confinement phase transition of the new
Externí odkaz:
http://arxiv.org/abs/2212.11953
The dilaton is predicted in various extensions of the standard model containing sectors with an approximate spontaneously-broken conformal invariance. As a Goldstone boson of a spontaneously broken symmetry, the dilaton can naturally be one of the li
Externí odkaz:
http://arxiv.org/abs/2212.00056
We show how to simplify the calculation of the finite contributions from heavy particles to EFT Wilson coefficients by using on-shell methods. We apply the technique to the one-loop calculation of $g-2$ and $H\gamma\gamma$, showing how finite contrib
Externí odkaz:
http://arxiv.org/abs/2201.10572
We show that the baryon asymmetry of the universe can be explained in models where the Higgs couples to the Chern-Simons term of the hypercharge group and is away from the late-time minimum of its potential during inflation. The Higgs then relaxes to
Externí odkaz:
http://arxiv.org/abs/2102.13650
On-shell amplitude methods have proven to be extremely efficient for calculating anomalous dimensions. We further elaborate on these methods to show that, by the use of an angular momentum decomposition, the one-loop anomalous dimensions can be reduc
Externí odkaz:
http://arxiv.org/abs/2010.13809
The LIGO observatories can potentially detect stochastic gravitational waves arising from phase transitions which happened in the early universe at temperatures around $T\sim 10^{8}$ GeV. This provides an extraordinary opportunity for discovering the
Externí odkaz:
http://arxiv.org/abs/1912.07587
Publikováno v:
Phys. Rev. D 100, 105019 (2019)
We present a novel framework for obtaining large hierarchies in axion decay constants as well as trans-Planckian field excursions, with no need for tuning or a large number of fields. We consider a model with two or more CFTs with a common cutoff, th
Externí odkaz:
http://arxiv.org/abs/1906.10193
Publikováno v:
JCAP10(2019)032
The coupling of an axion-like particle driving inflation to the Standard Model particle content through a Chern-Simons term generically sources a dual production of massless helical gauge fields and chiral fermions. We demonstrate that the interplay
Externí odkaz:
http://arxiv.org/abs/1905.13318
We present a comprehensive study of the electroweak phase transition in composite Higgs models, where the Higgs arises from a new, strongly-coupled sector which confines near the TeV scale. This work extends our study in Ref. [1]. We describe the con
Externí odkaz:
http://arxiv.org/abs/1804.07314